Scalable video coding using inter-layer prediction of spatial intra prediction parameters

US11575921B2 · kind B2 · utility

Assignee

• GE Video Compression, LLC · US

Inventors

• Tobias Hinz · Berlin, DE
• Haricharan Lakshman · Berlin, DE
• Jan Stegemann · Berlin, DE
• Philipp Helle · Berlin, DE
• Mischa Siekmann · Berlin, DE
• Karsten Suehring · Berlin, DE
• Detlev Marpe · Berlin, DE
• Heiko Schwarz · Panketal, DE
• Christian Bartnik · Berlin, DE
• Ali Atef Ibrahim KHAIRAT ABDELHAMID · Berlin, DE
• Heiner Kirchhoffer · Berlin, DE
• Thomas Wiegand · Berlin, DE

Key dates

• Filing date: Apr 29, 2020
• Grant date: Feb 7, 2023
• Expiry date: Apr 29, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N19/463
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

The coding efficiency of scalable video coding is increased by substituting missing spatial intra prediction parameter candidates in a spatial neighborhood of a current block of the enhancement layer by use of intra prediction parameters of a co-located block of the base layer signal. By this measure, the coding efficiency for coding the spatial intra prediction parameters is increased due to the improved prediction quality of the set of intra prediction parameters of the enhancement layer, or, more precisely stated, the increased likelihood, that appropriate predictors for the intra prediction parameters for an intra predicted block of the enhancement layer are available thereby increasing the likelihood that the signaling of the intra prediction parameter of the respective enhancement layer block may be performed, on average, with less bits.